// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Author: wsfuyibing <682805@qq.com>
// Date: 2024-12-02

package destroy

import (
	"context"
	"gitee.com/go-libs/log"
	"gitee.com/go-libs/result"
	"gitee.com/go-libs/validator-iris/validator"
	"gitee.com/go-wares/framework-iris/framework/src/logics"
	"gitee.com/gomq/sr"
	"github.com/kataras/iris/v12"
	"gomq/app/errs"
	"gomq/app/managers"
	"gomq/app/models"
	"gomq/app/services"
)

type Logic struct {
	request  *Request
	response *Response
}

func New() logics.Logical {
	return &Logic{
		request:  &Request{},
		response: &Response{},
	}
}

func (o *Logic) Before(_ context.Context, i iris.Context) (err error) {
	return validator.Json(i, o.request)
}

func (o *Logic) Run(ctx context.Context, _ iris.Context) result.Result {
	var (
		err          error
		has          bool
		res          = result.New()
		service      = services.NewTaskService()
		m            managers.Manager
		sm           managers.ServerManager
		subscription sr.Subscription
		task         *models.Task
	)

	ctx = log.NewContextForChildInfo(ctx, `destroy accept`)

	if task, err = service.GetById(ctx, o.request.Id); err != nil {
		return res.WithError(errs.ErrDatabaseError)
	}

	if task == nil {
		return res.WithError(errs.ErrTaskNotFound)
	}

	m = managers.Singleton()

	if sm, has = m.ServerManager(); !has {
		return res.WithError(errs.ErrServerManagerNotEnabled)
	}

	subscription = m.MemoryManager().BuildSubscription(task)
	if err = sm.Servlet().Remoting().Destroy(ctx, subscription); err != nil {
		return res.WithError(errs.ErrServerManagerError)
	}

	o.response.Id = subscription.GetId()
	o.response.Topic = subscription.GetTopic()
	o.response.Tag = subscription.GetTag()
	return result.New().With(o.response)
}
